Penguin Portrait - Aptenodytes forsteri

Emperor penguins are distinguished from king penguins,
the only other penguin species they could possibly be confused
with, by the yellow feathers in the ear region that fade
to white. King penguins have orange ear feathers and
the coloured patch is banded by a thin line of black feathers.

This picture also shows how difficult it is to get a
good portrait of an emperor penguin and show the eye rather
than it disappearing into the matt black of the surrounding
feathers.